212220031130220 has 48 divisors (see below), whose sum is σ = 595979339705568. Its totient is φ = 56424079488000.

The previous prime is 212220031130161. The next prime is 212220031130257. The reversal of 212220031130220 is 22031130022212.

It is a super-2 number, since 2×212220031130220² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5247755031 + ... + 5247795470.

It is an arithmetic number, because the mean of its divisors is an integer number (12416236243866).

Almost surely, 2^{212220031130220} is an apocalyptic number.

212220031130220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212220031130220 is an abundant number, since it is smaller than the sum of its proper divisors (383759308575348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212220031130220 is a wasteful number, since it uses less digits than its factorization.

212220031130220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10495550850 (or 10495550848 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 212220031130220 its reverse (22031130022212), we get a palindrome (234251161152432).

The spelling of 212220031130220 in words is "two hundred twelve trillion, two hundred twenty billion, thirty-one million, one hundred thirty thousand, two hundred twenty".